Insulating device.



' J. AvSIEYNIS. INSULATING DEVICE. APPLIfmTIoN FILED 11113.29. 1909.

Patented A'pl. 12, 1910.

In Ventor wzl;

Atty/ sra :erre Avenant ne rarnnr rien.

:JAN s'rEYNIs, or BABYILON, NEW YORK, Assreivon 'ro s'rEYNIs ozone COMPANY, A

CORPORATION 0F NEW YORK.

INSULATING DEVICE.

specification of Lettersratent. patentd Apr, 12, 1910,'

Application led March 29, 1909. Serial No. 486,295.

To cZZ whom it mcy concern:

-Be it known that I, .IAN Sfrnrnis, a subject of the Queen of the Netherlands, residing at Babylon, Long Island, State of New York, have invented certain new anduseful Improvements in- Insula-ting Devices, the following being a full, clear, and eXactdisclosure of one forml of my invention, which I at present deem a preferable embodiment thereof.

My invention relates to an insulating device for preventing an electric current, either lof the alternating or direct form, from being conducted along pipes or conduits connected with electrodes or similar devices in which luidor gaseous substances are used.

not only from My invention is of special utility for insulat-ing pipes which furnish a liquefied, eX-

-pansible gas to `hollow electrodes of an ozoni/,er for the purpose of cooling saine.

As 1s known in the art relating to the production of ozone, the electrodes may consist of hollow bodies placed' alternately in relation toeach other as concerns their polarity.' Each alternate electrode must he insulated the ground but from the pipes which supply the liquefied gas for cooling, the other electrodes being grounded so as to have the same polarity as the earth, the transformer or other device for supplying ower also being grounded at one terminal. It will also bte vunderstood that liquefied gas must be so treated that when in liquid form it will not constitute a. conducting'path 'for the electr-ic current. This object is also accomplished by my invention in a simple and efficient way.

For a detailed description of one form of my invention, reference maybe had to the 'following specification and to the accompanying drawing forming part thereof, in

ing for the insulating device and mountedv upon the casing 1` The numeral 3 indicates a thel electrode of the ozonizer, and the nucap 8, within pipe passing to meral 4 the return pipe for conducting the expanded gas back to the compression apparatus.

The supply of liquefied gas is conducted to tho-nipple 5 of the needle valve 6. the latter being for the purpose of controlling and regulating the amount of liquefied gas which 'passes through the system. The' needle valve is carried by or connects with the bushing 7 passing through the casing 2,- and said bushing is provided 'with a screw which is placed a suitable packing ring 9, preferablyv of rubber. The bushing 7 is also adapted to receive one end of a glass tube 10, and a Huid-tight joint between said tube and said bushing is formed by the cap 8 and the packing 9. Although I have specied the tube 10 as beingcomposed of glass, any other suitable material may be used, such as porcelain` quartz` etc. The lower end of the tube l() passes through a cap 1l, packing ring 12 and bushing 13, which aie carried upon'the end of a tube 14- of metal or other suitable material.

The bottom of the chamber formed by the easing 2 preferably consists of a` flanged plate 15 Amade of porcelain or suitable electrically non-conducting material. The flanges 1.6 preferably extend both above and below the plate 15, `in order to increase the surface of the said insulating wire. The tubev la passes through the plate 15 and is retained in position thereon by annular, screwthreaded plates 17 and 18, between which is introduced the packing 1,9. The needle valve (i is provided with a small, cylindrical extension 2O which passes within and supports an insulating tube .2l preferably made of soft rubber or other similar iiexible nonconducting material. The flexible tube 21 extends downward fora considerable dis-v tance through the glass tube 10 and its connecting tube l-l, as shown in Fig. 1.

The insulation of the return pipe 4 is accomplished in a manner similar to that of the inlet pipe- 3, the exception being that no inner insulating tube is carried, and of course the needle valve also omitted.

Interposed between the inlet pipe 3 and the tube l-L, is a cheek valve 22 which is designed to operate to close said inlet pipe whenever an abnormal pressure or an abnormal flow of the gas through the pipe takes place, such as in case of a rupture of pipe 3 or its connecting parts, or in case of the rupture of any part of the insulating device.

Similar check valves 23 and 24 are also pro vided to stop the flow in pipe 4E, should a rupture take place in the insulated por tion of the device.

The casing 2 is provided with valved inlet and outlet pi es 25 and 26 which are for the purpose of riving out moist air from the chamber formed by the casing 2, and subst-ituting dry, air or any other suitable duid therefor. The casing 2 is also provided with a relief or safety valve 27, which will not only release any abnormal pressure within the casing 2, but will also indicate the presence of a leak in the tubes comprising the insulating device, since the gas would expand in the chamber formed by such casing and escape through said relief valve 27.

The casing 2 is preferably divided into two parts which contain the inlet and outlet tubes respectively by a partition 2S which extends from the insulating plate 15 to the top of the casing 2. This is for the purpose of preventing pieces of one of the tubes from hitting or contacting with other vof said tubes, should one become broken by accident. Inasmuch as this partition 28 eX- tends only between the ianges 16 and the insulating plate 15, there is free circulation through the chamber formed by the casing 2 from the pipe 25 to the pipe 26.

The functions of my improved insulating device may be described as follows: Supposing liquefied gas be admitted through the nipple 5, the same passes through the needle valve 6, which may be adjusted to permit the passage of the requisite amount of the liquid, after which the gas passes into the inner rubber tube 21, where the initial expansion takes place. The gas therefore issues from the lower end of this tube in the form of a vapor, which immediately passes through check valve 22 and the pipe 23, durirg which passage further expansion takes p ace. l

It should be noted that the space between the outer surfaces of the tube 21 and the inner surfaces of the tubes 10 and 14 are not subject to any How of the gas, the gas being retained therein substantially inert. Therefore the cold produced by the expansion of the gas is very slowly communicated to the Glass tube 10, which prevents the glass tube from being cracked or broken by having a too great range of temperature between its interior and exterior surfaces.

Since the liquefied gas issues from the lower end of the inner tube 2l in the form of a vapor, although not completely eX- panded, there is no tendency for the electric current to follow the path of the liquelied gas so that it might leak through the valve l, the nipple 5 and the supply pipe connected with the latter, which is, of course, grounded.

In order to prevent moist-ure from collecting upon the surfaces of the parts ofthe are closed, after which the interior of the chamber requires no further attention.

In view of theabove description, it will be seen that I have produced a device for insulating electrodes and similar apparatus subject to high differences of potential, and at the same time I have provided means whereby the effect of moisture in the air, due to the humidity of a warm climate, is entirely eliminated, and I have also provided a device whereby it is not necessary to use an interrupting valve for dividing the liquefied gas into separate insulating drops or portions.

Having thus described this forni of my invention, I wish it to be understood that I do not desire to be limited to the exact details of form and arrangement of parts set forth, for various changes may be made by others skilled in the art, without departing from the spirit and scope of my invention.

Vhat I claim and desire to protect by Letters Patent is:

1. An insulating device for Huid conduits, comprising an insulating tube of electrically non-conducting material, a casing surrounding said insulating tube, and means for supplying dry gas to the chamber formed by said casing.

2. An insulating device for fluid conduits, comprising an insulating tube of electrically non-conducting material, a second insulating tube within the first-named tube, having its upper end connected with the fluid supplyl conduit, and its lower end passing through the first-named tube and extending beyond the same. 4

3. An insulating device for Huid conduits, comprising an insulating tube of electrically non-conducting material, a second insulating tube within the first-named tube, having its upper end connected with the iuid supply conduit and its lower end extending through and beyond the first-named tube, a casing surrounding the outer insulating tube, and means for supplying dry gas to the chamber formed by said casing.

4. An insulating device for fluid conduits comprising an insulating tube of electrically non-conducting material, an inner tube of non conducting material passing through and terminating below the first-named tube, and a valve connecting directly with the upper end of said inner tube for permitting expansion of said fluid Within said inner tube. e

5. An insulating device for Huid conduits, comprising an outer insulating tube of electrically non-conducting material, an inner tube located Within and extending beyond said outer tube, the space between said inner and outer tubes being closed at the upper ends, and means for permitting the expansion of liquefied gas Within said inner tube.

6. An insulating device for fluid conduits, connected with apparatus under high electric potential, comprising inlet and outlet pipes, tubesof non-conducting material 1ocated therein and situated adjacent each `other', a casing surrounding said non-conducting tubes, and means for supplying dry gas to the chamber formed by said casing. y v7. An insulating device for fluid conduits connected -With apparatus under high elec tric potential, comprising inlet and outlet pipes, tubes otnon-conducting material located therein and situated adjacent each other, an insulating plate through which the said conduits pass, a casing surrounding said non-conducting tubes, one side of which is formed by said insulating plate, and means for supplying dry gas to the chamber formed by said casing and said plate.

8. An insulating device for iiuid conduits -connected with apparatus under high electric potential, comprising inlet and outlet pipes, tubes of non-conducting material located therein and situated adjacent each other, an inner tube of non-conducting ma# terial located in the non-conducting tube of the 'inlet pipe and yextending through and i beyond the same, an insulating r plate' in insulating Devices,"

[SEAL] i l l i Correction n'Letters Patent No. 954,597.

`connected with apparatus under phi h elec- 4* tric potential, comprising inlet an outlet pipes, tubes of non-conducting materiallocated therein and situated adjacent each other, an inner tube located in and passing through the non-conducting tube of the inlet pipe, an insulating plate throu h which said pipes pass, a casing surroun ing said non-conducting tubes and having one side formed by said' insulating plate, a valve carried by said casing and connecting with said inner tube of the inlet pipe, and means for supplying dry gas to the chamber formed by said casing.

'10. An insulating device for fluidV -conduits connected With apparatus under high electric potential, comprising inlet and outletA pipes, tubes of non-conducting material located therein and situated adjacent to each. other, an insulating plate through which said conduits pass, said plate vbeing provided with laterally extending flanges, a casing surrounding said non-conducting tubes and having one side" formed by said insulating plate, and means for supplying dry gas to said casing;

Signed at' -March, 1909.

JAN srnrnis.

Witnesses: v

WALTER S. Jonas,l

EDWARD W. VAILL,J r.

same may conform to the record of the case in the Patent Oiiice.

signed and sealed uns sdday f May, A. D., 1910.

o. B1LL1Nes,- Acting (jbmmz'svsz'oner of Patents.

New Yfk aus 27th day er" It hereby certih'ed that in Letters Patent No. 954,597, granted April 12, 1910, upon the application ot' Jan Steynis, of Babylon, New York, for an'improvementv I an error appears in the Aprinted specitication requiring correction as follows: Page 4il, line 86,- the word Wire Ishould read plate; and

that the said Letters Patent should be read with this correctiontherein that the I' 

